Vulnerability in Mybb
CVE-2025-48941
MyBB is free and open source forum software. Prior to version 1.8.39, the search component does not validate permissions correctly, which allows attackers to determine the existence of hidden (draft, unapproved, or soft-deleted) threads co…
EPSS: 0.003 (51.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Mybb — versions < 1.8.39
Weakness classification (CWE)
References
- https://github.com/mybb/mybb/security/advisories/GHSA-f847-57xc-ffwr (x_refsource_CONFIRM)
- https://github.com/mybb/mybb/commit/b8cc332a27e145c33effaccec90e23c103ae5193 (x_refsource_MISC)
- https://mybb.com/versions/1.8.39 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-48941?
- CVE-2025-48941 is a medium-severity vulnerability in Mybb, classified under CWE-1230. CVSS score: 5.3/10. Published 2025-06-02.
- How severe is CVE-2025-48941?
- Medium severity. CVSS v3 base score is 5.3 out of 10.